Re: Canon Cameras

To: Ákos Lumnitzer <>
Subject: Re: Canon Cameras
From: David Stowe <>
Date: Fri, 26 Nov 2010 08:22:45 +1100
The 500mm is such a sharp lens that you get used to a certain level of quality. 
With a 1.4x I don't really notice the difference, whereas with a 2x I do notice 
a difference in quality. Nothing to do with technique. I also have reasonable 
shots with stacked converters but you could never say they are as sharp as the 
500mm by itself.
Obviously its easy to make these images look sharp when resizing for web forums 
and adding sharpening etc, but at 100% i personally find a difference.

On 26/11/2010, at 7:43 AM, Ákos Lumnitzer wrote:


I have to disagree about the Canon EF 2x. Maybe you have a bad copy or I have a 
fabulous one. Under the right circumstances and using solid technique I most 
certainly get more than good enough quality images and I don't even use a 
500/4L yet. Even stacking a 1.4x and a 2x I can get very good results (hand 
holding!). Just food for thought. I admit, I am no pixel peeper, but certainly 
have a very good grasp of this funny thing called photography and professional 
nature photographers world-wide like what I am capable of producing.  :) What 
my point is that there are many factors to consider with converters; light, 
lens, technique, converter quality (individuals most likely differ) and so on. 
I won't even touch the subject of cropping (excessively) as many now do because 
they have 15+ megapixel cameras.

respectfully yours

(just an amateur in many worlds) :)

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